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Go Back   GSM-Forum > Product Support Sections > No More Supported Solutions (Dead Products) > No More Supported H/W Products > Advance-Box


 
 
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Old 05-02-2015, 10:14   #1 (permalink)
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help downgrade n900v


hi
i upgraded my n900v to lolipop and lost root
and as you know it cant be downgraded to 4.4.2 officialy
no im asking it this possible to write 4.4.2 offical rom via emmc connection to phone and downgrade to 4.4.2???
 
Old 05-02-2015, 12:02   #2 (permalink)
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Quote:
Originally Posted by oktay50000 View Post
hi
i upgraded my n900v to lolipop and lost root
and as you know it cant be downgraded to 4.4.2 officialy
no im asking it this possible to write 4.4.2 offical rom via emmc connection to phone and downgrade to 4.4.2???

You cannot downgrade because BOOT version is saved in QFUSE of Qualcomm SOC.

If your phone was EXYNOS based, then you can... but your phone is Qualcomm Snapdragon 800 MSM8974AB... So you cant.

If you only want to ROOT, then I suggest you find ways to do it rather than find ways to downgrade back to 4.4.2
 
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Old 05-03-2015, 05:04   #3 (permalink)
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Quote:
Originally Posted by Advance-Box View Post
You cannot downgrade because BOOT version is saved in QFUSE of Qualcomm SOC.

If your phone was EXYNOS based, then you can... but your phone is Qualcomm Snapdragon 800 MSM8974AB... So you cant.

If you only want to ROOT, then I suggest you find ways to do it rather than find ways to downgrade back to 4.4.2
So there must be: if phone use Exynos chip may downgrade .....
Qualcomm Snapdragon chip 800 can not downgrade MSM8974AB

I think so true
 
 

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